/* Reader system: chapters, concepts and guides share this. */
:root{--ga:#52ffc6}
.prog{position:fixed;top:0;left:0;right:0;height:3px;z-index:60;background:transparent}.prog i{display:block;height:100%;width:0;background:var(--grad);box-shadow:0 0 12px rgba(166,120,255,.8)}
/* hero */
.rhero{position:relative;overflow:hidden;border-bottom:1px solid var(--edge)}
.rhero::before{content:"";position:absolute;width:620px;height:620px;right:-160px;top:-260px;border-radius:50%;background:radial-gradient(circle,var(--ga) 0,transparent 66%);opacity:.22;filter:blur(30px);pointer-events:none}
.rhero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:44px 44px;-webkit-mask-image:radial-gradient(ellipse at 70% 0,#000,transparent 70%);mask-image:radial-gradient(ellipse at 70% 0,#000,transparent 70%);pointer-events:none}
.rh-in{position:relative;z-index:1;max-width:1180px;margin:0 auto;padding:clamp(34px,6vw,74px) max(20px,env(safe-area-inset-left)) clamp(30px,5vw,56px);display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,.9fr);gap:clamp(24px,4vw,56px);align-items:end}
.rh-main .eyebrow{display:flex;align-items:center;gap:10px;color:var(--ga)}.rh-main .dot{width:9px;height:9px;border-radius:50%;background:var(--ga);box-shadow:0 0 14px var(--ga)}
.rh-main h1{margin:.35em 0 .3em;font-size:clamp(36px,6.6vw,76px);line-height:1.02;background:linear-gradient(180deg,#fff 30%,#b9c7e4);-webkit-background-clip:text;background-clip:text;color:transparent}
.rh-lede{font-size:clamp(18px,2.2vw,22px);line-height:1.55;color:#cdd9ee;max-width:56ch;margin:0}
.rh-act{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}.rh-act .go,.rh-act .chip,.rh-act a,.rh-act button{margin:0;padding:12px 20px;font:inherit;font-weight:700;cursor:pointer;text-decoration:none;display:inline-block}
.rh-card{border:1px solid var(--edge);border-radius:22px;padding:20px;background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.015));backdrop-filter:blur(10px);box-shadow:0 30px 60px -34px #000,0 0 0 1px rgba(255,255,255,.02) inset;min-width:0}
.rh-k{margin:0 0 12px;font:600 11.5px var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--mut)}
.rh-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.rh-stats div{border-radius:14px;padding:12px 8px;text-align:center;background:rgba(255,255,255,.04);border:1px solid var(--edge)}
.rh-stats b{display:block;font-size:clamp(22px,3vw,30px);line-height:1;color:var(--ga);font-weight:800;text-shadow:0 0 18px color-mix(in srgb,var(--ga) 55%,transparent)}.rh-stats span{display:block;font-size:12px;color:var(--mut);margin-top:6px}
.rh-facts{list-style:none;margin:14px 0 0;padding:0;display:grid;gap:8px}.rh-facts li{position:relative;padding-left:20px;font-size:14.5px;color:#c4d0e6;line-height:1.45;margin:0}.rh-facts li::before{content:"";position:absolute;left:0;top:.5em;width:8px;height:8px;border-radius:50%;background:var(--ga);box-shadow:0 0 10px var(--ga)}
/* layout */
.wrap{max-width:1180px;margin:0 auto;display:grid;grid-template-columns:240px minmax(0,1fr);gap:clamp(28px,4vw,56px);padding:40px max(20px,env(safe-area-inset-left)) 20px}
.toc{position:sticky;top:84px;align-self:start;max-height:calc(100dvh - 110px);overflow:auto;font-size:14px;padding-right:6px;scrollbar-width:thin}
.toc h4{margin:0 0 10px;font:600 11.5px var(--mono);letter-spacing:.16em;color:var(--mut);text-transform:uppercase}
.toc a{display:flex;gap:10px;align-items:baseline;padding:7px 10px;border-radius:10px;color:var(--mut);text-decoration:none;line-height:1.3;transition:background .15s,color .15s}
.toc a i{font:600 11px var(--mono);font-style:normal;color:#5f7295;flex:none;width:20px}
.toc a:hover{color:#fff;background:rgba(255,255,255,.05)}
.toc a.on{color:#fff;background:linear-gradient(90deg,color-mix(in srgb,var(--ga) 18%,transparent),transparent);box-shadow:inset 2px 0 0 var(--ga)}.toc a.on i{color:var(--ga)}
.chap{min-width:0;max-width:780px}
.chap p{margin:.85em 0}
.chap>p:first-of-type{font-size:1.06em}
.chap h2.sh{display:flex;align-items:center;gap:14px;margin:2.6em 0 .7em;padding:0;border:0;font-size:clamp(24px,3.2vw,34px);scroll-margin-top:92px}
.sh .num{font:700 13px var(--mono);letter-spacing:.08em;color:#03140f;background:var(--ga);border-radius:8px;padding:5px 9px;box-shadow:0 0 18px color-mix(in srgb,var(--ga) 60%,transparent);flex:none}
.sh .tt{flex:0 1 auto;min-width:0}.sh::after{content:"";flex:1;height:1px;background:linear-gradient(90deg,var(--edge),transparent);min-width:20px}
.chap h3{font-size:19px;margin:1.4em 0 .3em}
.lede{font-size:19px}
/* overview */
.chap .ov p:first-child{font-size:1.14em;line-height:1.6;color:#e6eefb;border-left:3px solid var(--ga);padding-left:18px;margin-left:0}
/* terms */
.terms{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr));gap:12px}
.term{padding:16px 18px;position:relative;overflow:hidden}.term::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--ga);box-shadow:0 0 14px var(--ga)}
.term b{display:block;color:#fff;font-size:16.5px;margin-bottom:4px}.term span{font-size:15px;color:#b6c3dc;line-height:1.55}
/* flow map + steps */
.flowmap{display:flex;gap:8px;overflow-x:auto;padding:4px 2px 14px;margin:0 0 6px;scrollbar-width:thin;-webkit-overflow-scrolling:touch}
.flowmap span{flex:none;display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:99px;border:1px solid var(--edge);background:rgba(255,255,255,.04);font-size:13.5px;font-weight:600;color:#d6e0f3;white-space:nowrap}
.flowmap span i{font:700 11px var(--mono);font-style:normal;color:#03140f;background:var(--ga);width:20px;height:20px;border-radius:50%;display:grid;place-items:center}
.flowmap span+span::before{content:"";position:absolute}
.stepl{counter-reset:s;list-style:none;padding:0;margin:14px 0;position:relative}
.stepl::before{content:"";position:absolute;left:21px;top:10px;bottom:10px;width:2px;background:linear-gradient(var(--ga),transparent);opacity:.5}
.stepl>li{counter-increment:s;position:relative;margin:0 0 14px;padding:16px 18px 16px 70px!important;border-radius:var(--r)}
.stepl>li::before{counter-increment:none;content:counter(s,decimal-leading-zero)!important;position:absolute;left:0;top:14px;width:44px;height:44px;border-radius:14px;display:grid;place-items:center;font:700 14px var(--mono);color:#03140f;background:var(--ga)!important;box-shadow:0 0 22px color-mix(in srgb,var(--ga) 55%,transparent);margin:0}
.stepl>li::after{display:none}
.stepl b{display:block;font-size:17.5px;margin-bottom:4px;color:#fff}
.stepl>li{background:var(--glass),var(--card);border:1px solid var(--edge);color:#bccae0;font-size:16px;line-height:1.6}
/* roles */
.roles{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));gap:12px}
.rolec{display:grid;grid-template-columns:44px minmax(0,1fr);gap:14px;padding:16px 18px;align-items:start}
.rolec .av{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;font-weight:800;color:#03140f;background:var(--grad);box-shadow:0 0 18px rgba(166,120,255,.5)}
.rolec b{display:block;color:#fff;margin-bottom:2px}.rolec span{font-size:15px;color:#b6c3dc;line-height:1.55}
/* in / out */
.io{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);gap:14px;align-items:stretch}
.io .box h3{font:600 12px var(--mono);letter-spacing:.14em;text-transform:uppercase;margin:0 0 8px}.io .in h3{color:var(--n-cyan)}.io .out h3{color:var(--n-mint)}
.io .arr{display:grid;place-items:center;font-size:26px;color:var(--ga);text-shadow:0 0 16px var(--ga)}
.io .in{border-top:2px solid var(--n-cyan)!important}.io .out{border-top:2px solid var(--n-mint)!important}
/* case file */
.case{position:relative;padding:0!important;overflow:hidden;border-color:color-mix(in srgb,var(--ga) 40%,var(--edge))!important}
.case .cf-h{display:flex;align-items:center;gap:12px;padding:12px 20px;border-bottom:1px solid var(--edge);background:linear-gradient(90deg,color-mix(in srgb,var(--ga) 16%,transparent),transparent)}
.case .cf-h span{font:700 11px var(--mono);letter-spacing:.18em;color:var(--ga)}.case .cf-h h3{margin:0;font-size:18px;color:#fff}
.case .cf-b{padding:6px 22px 20px}.case .cf-b p{color:#c4d0e6}
.case .take{margin-top:16px;padding:14px 16px;border-radius:14px;background:rgba(82,255,198,.07);border:1px solid rgba(82,255,198,.22)}.case .take b{font:700 11.5px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--n-mint)}
.case .take ul{margin:.5em 0 0}
/* metrics */
.metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,330px),1fr));gap:12px}
.metc{padding:16px 18px}.metc h4{margin:0 0 10px;font-size:17px;color:#fff}.metc dl{margin:0;display:grid;gap:10px}.metc dt{font:600 11px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--n-cyan);margin:0}.metc dd{margin:2px 0 0;font-size:15px;color:#b9c6dd;line-height:1.55}
.metc dt.w{color:var(--n-gold)}
/* pitfalls */
.pits{display:grid;gap:12px}
.pit{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);overflow:hidden;padding:0!important}
.pit>div{padding:16px 18px;min-width:0}.pit .bad{background:linear-gradient(135deg,rgba(255,122,99,.12),transparent)}.pit .good{background:linear-gradient(135deg,rgba(82,255,198,.10),transparent);border-left:1px solid var(--edge)}
.pit small{display:block;font:700 11px var(--mono);letter-spacing:.16em;text-transform:uppercase;margin-bottom:6px}.pit .bad small{color:var(--n-coral)}.pit .good small{color:var(--n-mint)}
.pit b{display:block;color:#fff;font-weight:650;line-height:1.45}.pit .good span{color:#c4d0e6;line-height:1.55;font-size:15.5px}
/* maturity ladder */
.ladder{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;align-items:end}
.lad{padding:18px!important;position:relative;overflow:hidden}.lad:nth-child(1){min-height:200px}.lad:nth-child(2){min-height:240px}.lad:nth-child(3){min-height:280px}
.lad::after{content:"";position:absolute;left:0;right:0;bottom:0;height:4px;background:var(--lc);box-shadow:0 0 20px var(--lc)}
.lad .bars{display:flex;gap:4px;align-items:flex-end;height:22px;margin-bottom:10px}.lad .bars i{width:8px;border-radius:2px;background:rgba(255,255,255,.12)}.lad .bars i:nth-child(1){height:8px}.lad .bars i:nth-child(2){height:15px}.lad .bars i:nth-child(3){height:22px}
.lad[data-l="1"] .bars i:nth-child(-n+1),.lad[data-l="2"] .bars i:nth-child(-n+2),.lad[data-l="3"] .bars i{background:var(--lc);box-shadow:0 0 8px var(--lc)}
.lad b{display:block;color:var(--lc);margin-bottom:6px;font-size:17px}.lad p{margin:0;font-size:15.5px;color:#c0cde3;line-height:1.55}
/* plan */
.plan3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.ph{padding:20px!important;position:relative;overflow:hidden}
.ph .big{font:800 64px/1 var(--sans);letter-spacing:-.05em;color:transparent;-webkit-text-stroke:1.5px var(--ga);opacity:.9;margin:0}
.ph h3{margin:.2em 0 .5em;font-size:17px}.ph ul{margin:.4em 0 0}.ph li{font-size:15.5px}
/* checklist */
.chkbar{display:flex;align-items:center;gap:14px;margin:0 0 12px}.chkbar .track{flex:1;height:8px;border-radius:99px;background:rgba(255,255,255,.07);overflow:hidden}.chkbar .track i{display:block;height:100%;width:0;background:var(--grad2);box-shadow:0 0 14px rgba(82,255,198,.6);transition:width .3s}.chkbar span{font:700 13px var(--mono);color:var(--n-mint)}
.chk{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.chk li{margin:0;padding:0!important}.chk li::before{display:none!important}
.chk label{display:grid;grid-template-columns:24px minmax(0,1fr);gap:14px;align-items:start;cursor:pointer;padding:12px 16px;border-radius:14px;background:var(--glass),var(--card);border:1px solid var(--edge);line-height:1.5;transition:border-color .15s,background .15s}
.chk label:hover{border-color:rgba(82,255,198,.4)}
.chk input{appearance:none;-webkit-appearance:none;width:22px;height:22px;margin:1px 0 0;border-radius:7px;border:2px solid #3a4c70;background:transparent;display:grid;place-items:center;cursor:pointer;transition:all .15s}
.chk input:checked{background:var(--grad2);border-color:transparent;box-shadow:0 0 14px rgba(82,255,198,.6)}.chk input:checked::after{content:"";width:6px;height:11px;border:solid #03140f;border-width:0 2.5px 2.5px 0;transform:rotate(45deg) translate(-1px,-1px)}
.chk input:checked+span{color:#8aa0c2;text-decoration:line-through;text-decoration-color:rgba(138,160,194,.5)}
/* connected */
.rel{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,230px),1fr));gap:12px}
a.relc{display:block;padding:16px 18px;text-decoration:none;color:var(--ink)}a.relc b{display:flex;justify-content:space-between;gap:8px;color:#fff}a.relc b::after{content:"→";color:var(--n-mint)}a.relc span{display:block;font-size:14.5px;color:#aebcd6;margin-top:6px;line-height:1.5}
/* callout */
.callout{padding:20px 22px;border-radius:var(--r);background:linear-gradient(135deg,rgba(166,120,255,.16),rgba(54,228,255,.06));border:1px solid rgba(166,120,255,.35)}.callout p{margin:.5em 0;color:#d4dcf0}
/* faq */
details.fq{padding:0!important;margin:10px 0;overflow:hidden;background:var(--glass),var(--card);border:1px solid var(--edge);border-radius:14px}
details.fq summary{list-style:none;cursor:pointer;padding:15px 52px 15px 18px;font-weight:650;position:relative;line-height:1.4}details.fq summary::-webkit-details-marker{display:none}
details.fq summary::after{content:"+";position:absolute;right:16px;top:50%;transform:translateY(-50%);width:26px;height:26px;border-radius:50%;display:grid;place-items:center;font-weight:700;color:var(--n-mint);border:1px solid rgba(82,255,198,.4);transition:transform .2s}
details.fq[open] summary::after{content:"−";transform:translateY(-50%) rotate(180deg)}details.fq[open]{border-color:rgba(82,255,198,.35)}
details.fq p{margin:0;padding:0 18px 16px;color:#b9c6dd}
.reflect{display:grid;gap:10px;counter-reset:rf;padding:0;list-style:none}
.reflect li{counter-increment:rf;position:relative;margin:0!important;padding:14px 16px 14px 58px!important;border-radius:14px;background:var(--glass),var(--card);border:1px solid var(--edge)}
.reflect li::before{content:counter(rf)!important;position:absolute;left:14px;top:12px!important;width:30px!important;height:30px!important;border-radius:10px!important;display:grid;place-items:center;font:700 13px var(--mono);color:#03140f;background:var(--grad)!important;box-shadow:0 0 14px rgba(166,120,255,.5)!important}
.cta-row{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0}.cta-row a,.cta-row button{text-decoration:none;padding:12px 20px;font:inherit;font-weight:700;cursor:pointer}
.nav2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:48px 0 10px}.nav2 a{display:block;padding:18px 20px;border-radius:var(--r);color:#fff;text-decoration:none;font-weight:650;background:var(--glass),var(--card);border:1px solid var(--edge);transition:all .18s}.nav2 a:last-child{text-align:right}.nav2 small{display:block;color:var(--n-mint);font:600 11.5px var(--mono);letter-spacing:.12em;text-transform:uppercase;margin-bottom:4px}.nav2 a:hover{border-color:rgba(82,255,198,.5);transform:translateY(-2px)}
.soon{padding:22px;border:1px dashed #3a5b6b;border-radius:14px}
.meta{display:none}
table.t{width:100%;border-collapse:collapse;font-size:15.5px;margin:12px 0}table.t th,table.t td{text-align:left;vertical-align:top;padding:11px 14px;border-bottom:1px solid var(--edge)}
.tbl{overflow-x:auto}
@media(max-width:900px){
 .rh-in{grid-template-columns:minmax(0,1fr)}
 .wrap{grid-template-columns:minmax(0,1fr);gap:6px;padding-top:18px}
 .toc{position:sticky;top:58px;z-index:20;display:flex;gap:8px;overflow-x:auto;max-height:none;margin:0 -20px;padding:8px 20px;background:rgba(6,9,19,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--edge);scroll-snap-type:x proximity;-webkit-overflow-scrolling:touch}
 .toc h4{display:none}.toc a{flex:none;white-space:nowrap;border:1px solid var(--edge);border-radius:99px;padding:8px 14px;min-height:40px;align-items:center;scroll-snap-align:start}.toc a i{display:none}
 .toc a.on{box-shadow:none;background:color-mix(in srgb,var(--ga) 22%,transparent);border-color:var(--ga)}
 .io{grid-template-columns:minmax(0,1fr)}.io .arr{transform:rotate(90deg);font-size:22px}
 .pit{grid-template-columns:minmax(0,1fr)}.pit .good{border-left:0;border-top:1px solid var(--edge)}
 .ladder,.plan3{grid-template-columns:minmax(0,1fr)}.lad:nth-child(n){min-height:0}
 .nav2{grid-template-columns:minmax(0,1fr)}.nav2 a:last-child{text-align:left}
 .rh-stats b{font-size:24px}
 .chap h2.sh{gap:10px;margin-top:2.2em}.sh::after{display:none}
 .stepl::before{left:19px}.stepl>li{padding:14px 14px 14px 62px!important}.stepl>li::before{width:40px;height:40px;border-radius:12px}
 .chap{overflow-wrap:anywhere}
}
@media print{body{background:#fff!important;color:#111}body::before{display:none}.top,.toc,.prog,.cta-row,.nav2,footer,.rhero::before,.rhero::after{display:none!important}.rhero{border:0}.rh-in{display:block;padding:0}.rh-main h1{-webkit-text-fill-color:#111;color:#111;background:none}.rh-card{display:none}.wrap{display:block}.chap{max-width:none}.term,.box,.case,.lad,.ph,.stepl>li,.pit,.metc,.rolec,.chk label,details.fq,.nav2 a{background:#fff!important;border-color:#bbb!important;color:#111;box-shadow:none}.stepl>li,.term span,.case .cf-b p,details.fq p,.lede,.rh-lede{color:#222}a{color:#111}details{display:block}details>*{display:block}.sh .num{background:#eee;color:#111;box-shadow:none}.stepl b,.metc h4,.rolec b,.term b{color:#111}}
.rolec,.metc,.pit,.lad,.ph,a.relc,.callout,.term{border:1px solid var(--edge);border-radius:var(--r);box-shadow:0 1px 0 rgba(255,255,255,.05) inset,0 18px 40px -26px rgba(0,0,0,.9)}
.rolec,.metc,.pit,.lad,.ph,a.relc{background:var(--glass),var(--card)}
a.relc{transition:all .18s}a.relc:hover{border-color:rgba(82,255,198,.55);transform:translateY(-3px)}
.chap section.ov>h2.sh{margin-top:0}
.chap .ov h2+p{font-size:1.14em;line-height:1.6;color:#e6eefb;border-left:3px solid var(--ga);padding-left:18px}
.term span,.rolec span,.metc dd,.lad p,.pit .good span,a.relc span{line-height:1.55!important;display:block}
.term span{margin-top:2px}
main.chap{margin:0!important;padding-inline:0!important;width:100%;max-width:780px}
.io .box{padding:16px 18px}